Signal device



May 26, 1931. G. a. GRAFF. ET AL SIGNAL DEVICE Filed Aug. 19, 1930Patented May 26, `1931 asomo UNITED STATES PATlazNT` OFFICE GEORGE B.GRAFF, OF NEWTON CENTER, AND ROBERT A.

MASSACHUSETTS, ASSIGNORS TO GEORGE B. GRAFF MASSACHUSETTS, CORPORATIONOF MASSACHUSETTS STEWART, OF WATERTOWN, COMPANY, OF CAMBRIDGE,

l SIGNAL nevica Appnqmon med August is, 1930. serial No. 476290.

This invention relates to clips adapted to be attached to the margins ofcards, files or other indexed sheets and to serve as a si al identifyingthe subject matter on the s eet or supplying other informationpertaining grip and retain the clip thereon against rela- -t1ve 'an larmovement or casual detachment. heouter face of the leg 8 of the cl1p may`be colored or otherwise marked to serve as a suitable signal, asindicated 55 thereto. The principal object of the invention is toprovide an improved slip si nal of simple and durable construction wichl ypreferred method of attaching the clip to a for example by the redcolor of Fi 1; or one of said portions, for example t e ortion 15 ofthemodiied clip shown in ig. 6, mayhave a window aperture 16 to displaya signal marked on the/card itself, as the numeral 4. l

A signal clip constructed` as above described is simple and inexpensiveto manui facture, easily and securely aiixed to an index sheet, andadapted to carry or display a variety of signals. clearly visible eventhough the sheet isl assembled with others in a book or filing system;get the clip does not project appreciably eyond the edge of the card andis thus less likely to be dislodged or damaged.

We claim: v1. A signal device for index systems,'corn The signal clipisvr card; and prising a pair of legs of thin resilient ma- Fig. d is a:face view of a modified form terial adapted to receive and grip a card75 of clip. therebetween, said legs being connected to- The improveddevice comprises a sprin clip'formed of resilient sheet metal'foldetransversely at 7 to furnish two legs 8 and 9 respectively which arenormally urged toward each other by the resiliency of the clip. The freeends of the legs 8 and 9 are preferably rounded at their lower ends asat 10 and 11.

The structure is preferably made-with one leg 8 fiat, while the otherleg 9 is provided with inwardly struck depressions or indentations 12and 13 disposed in spaced relation and normally contacting with theinner face of the leg 8, thereby contacting gether at one end of saidclip and in contact adjacent their free ends, said device havin twolongitudinally spaced indentations and each of said indentations adaptedto grip a card against the inner face of the opposing leg, saidindentations being spaced apart and with one indentation suiicientlyclose to theffree end of said leg to permit the intermediate portion ofthe device between saidindentations to be pinched between the fingers tosuiiiciently separate the normally contacting free ends of said legs toreadily permit the insertion of a card therebetween, the indentationadjacent the vfree end acting as a fulcrum for such purpose.

2. A signal device for index systems, comprising la pair oflegs of thinresilient matel rial adapted to receive and grip a card therebetween,said legs being connected together at onel end of said clip and incontact adjacent their free ends one leg having two longitudinallyspaced .1ndentations on the inner side thereof, adapted .to grip a cardagainst the inner face of the opposing leg, mi

said indentations being spaced apart and with one indentationsufficiently close to the free end of said leg'to permit the legsbetween said indentations to be pinched between the fingers tosuiiiciently separate the normally contacting free ends of said legs toreadily permit the insertion of a card therebetween, the indentationadjacent the free end acting asa fulcrum for such purpose. 1o

3. A signal device for index systems, comprising a pair of legs of thinresilient materialadapted to receive and grip a card therebetween, saidle being connected together at one end of said clip and in contactadjacent their free ends, one leg having two transverse ridges on theinner side thereof,`

adapted to grip a card against the inner face of the opposing leg, saidridges being spaced apart and with one ridge suiciently closeV to thefree end of said leg to permit the leg between said ridges to be pinchedbetween p the fingers to suiiciently separate` the normall contactinfree ends of said legs to readlly permit t e insertion of a cardtherebetween, the ridge adjacent the free end acting as a ulcrum forsuch ur ose. GEORGE B. GPR F.

ROBERT A. STEWART.

